Expand Your Mind - Puzzles and Brain Teasers

To expand your mind you need to learn new facts and develop new modes of thinking that will make the information that you already know more useful. Solving the following problems requires a combination of world knowledge, mathematics, common sense, logic, and science (chemistry, physics). This is not an IQ test. To expand your mind, do not look at the answers until after you have made an honest effort to figure out the problems. The Bear A bear walks south for one kilometer, then it walks west for one kilometer, then it walks north for one kilometer and ends up at the same point from which it started. The Chicken and Egg Problem A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. The Chicken and Leg Problem A chicken farmer also has some cows for a total of 30 animals, and the animals have 74 legs in all. The Bacteriologist At what time was the container half full? How big was the container? Fibonacci's problem of the birds Moon Photographer
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Nick's Mathematical PuzzlesWelcome to my selection of mathematical puzzles. What's new? See puzzle 160. The math puzzles presented here are selected for the deceptive simplicity of their statement, or the elegance of their solution. They range over geometry, probability, number theory, algebra, calculus, trigonometry, and logic. Explaining how an answer is arrived at is more important than the answer itself. Each puzzle is assigned a level of difficulty of between one and four stars, with four being the most difficult. The source for each problem is given at the bottom of the solution page. I welcome feedback of any kind. Some brief biographical information. Nick Back to top

The Ultimate Puzzle Site - Brain-TeasersFive sailors survive a shipwreck and swim to a tiny island where there is nothing but a coconut tree and a monkey. The sailors gather all the coconuts and put them in a big pile under the tree. Exhausted, they agree to go to wait until the next morning to divide the coconuts. At one o'clock in the morning, the first sailor wakes up. At two o'clock, the second sailor wakes up. At three, four, and five o'clock in the morning, the third, fourth, and fifth sailors each wake up and carry out the same actions. In the morning, all the sailors wake up, and try to look innocent.The Atlantic slave trade: What too few textbooks told you - Anthony HazardThe Atlantic slave trade sent slaves to various locations in the world. What effect did this forced migration have on these areas? Visit the Mariner’s Museum Captive Passage website. Gain some more perspective on how the slave trade affected the Americas. Then read the transcript or listen to this 15 Minute History podcast and find out more. Gain a greater understanding of life aboard the slave ships at PBS. What do North America, the Caribbean, Brazil, Europe and Africa all have in common? Are their myths and misconceptions about slavery?

77 Brain Hacks to Learn Faster, Deeper, and BetterSource: Online Education Database If someone granted you one wish, what do you imagine you would want out of life that you haven't gotten yet? For many people, it would be self-improvement and knowledge. New knowledge is the backbone of society's progress. Great thinkers such as Leonardo da Vinci, Thomas Edison, Benjamin Franklin, Albert Einstein, and others' quests for knowledge have led society to many of the marvels we enjoy today. Your quest for knowledge doesn't have to be as Earth-changing as Einstein's, but it can be an important part of your life, leading to a new job, better pay, a new hobby, or simply knowledge for knowledge's sake — whatever is important to you as an end goal. Life-changing knowledge does typically require advanced learning techniques. Here are 77 tips related to knowledge and learning to help you on your quest. 1. 2. 4. 5. Balance 6. 7. 8. 9. 10. 11. 12. 13. 14. Recall Techniques 15. 16. 17. Visual Aids 18. 19. 20. 21. 22. Verbal and Auditory Techniques 24. 25.

Last KnightsPonder this | pagesYou are cordially invited to match wits with some of the best minds in IBM Research. Seems some of us can't see a problem without wanting to take a crack at solving it. Does that sound like you? Good. Here is the solution for our March 2014 problem.And now... here's our April challenge! So give your mind a break from its routine---you never know what other problems you may solve in the process! The current puzzlemaster is Oded Margalit.Athey Educational's Games MenuWhy choose Athey Educational? We were the first to produce 11+ practice papers and have gone on to sell over 1 million packs worldwide.

What really happens to the plastic you throw away - Emma BryceIf you watched this video, you’re probably interested in how plastics are made, and what impact they have on the environment. For starters, you might want to watch this video that shows you how plastic bottles are produced. The American Chemistry Council also has some helpful guidelines on how the material is manufactured, what different types there are, and what role monomers and polymers play in the manufacturing process. (What are monomers and polymers anyway? Moving on from the molecular stuff, plastic also has more visible impacts on the earth. Talking of hazards, plastic in the ocean is one of the greatest hazards of all. But there’s hope: plastics can be recycled, after all. Finally, this TED speaker shares some ‘tough truths about plastic pollution’, and in this talk, you can meet the man who first discovered those ‘garbage patches’ in the sea. Watch these other TED Ed lessons on Plastics and Pollution!

What is Mind Mapping? (and How to Get Started Immediately)A mind map is a graphical way to represent ideas and concepts. It is a visual thinking tool that helps structuring information, helping you to better analyze, comprehend, synthesize, recall and generate new ideas. Just as in every great idea, its power lies in its simplicity. In a mind map, as opposed to traditional note taking or a linear text, information is structured in a way that resembles much more closely how your brain actually works. So, how does a mind map look like? (click for larger image) This is a mind map about – conveniently enough – mind mapping itself. Benefits and Uses I think I already gave away the benefits of mind mapping and why mind maps work. But what can we use mind maps for? Note takingBrainstorming (individually or in groups)Problem solvingStudying and memorizationPlanningResearching and consolidating information from multiple sourcesPresenting informationGaining insight on complex subjectsJogging your creativity How to Draw a Mind Map Some more recommendations: